Thompson, George C., author
Wassworth, 1969
Buku Teks
Thompson, George C., author
Wadsworth, 1965
Buku Teks
Bird, Francis A.
Robert F. Dame, Inc. , 1981
Buku Teks
Randall, Michael
McGraw-Hill, 1977
Buku Teks
Gleim, Irvin N., author
John Wiley & Sons, 1984
Buku Teks